Following statements are related to the Epigenetic regulation of Hox gene expression in the chick limb .

A. Hoxa13 is normally not expressed during early limb bud outgrowth.

B. Hoxa13 is normally expressed during early limb bud outgrowth.

C. Inhibition of histone deacetylases with a TSA-coated bead implanted into the early limb bud results in precocious Hoxa13 expression and specifically reduced skeletal elements of the zeugopod

D. Inhibition of HAT proteins with a TSA-coated bead implanted into the early limb bud results in Hoxa13 expression and specifically reduced skeletal elements of the zeugopod

E. The epigenetic hold on gene Hoxa13 expression to allow the necessary time for zeugopod development.

F. The epigenetic hold on gene Hoxa13 expression to allow the necessary time for autopod development.

Which of the following combinations are correct?

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#Question id: 10776

#Unit 6. System Physiology – Plant

pyrethroids that occur in the leaves and flowers of Chrysanthemum species show very striking insecticidal activity. Pyrethroids are________

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#Question id: 2400

#Unit 2. Cellular Organization

Yeast cells that have defective mitochondria incapable of respiration will be able to grow by catabolizing which of the following carbon sources for energy?

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#Question id: 2959

#Unit 2. Cellular Organization

During which of the following mitotic phases are chromosomes dispersed the most?

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#Question id: 4090

#Unit 3. Fundamental Processes

Tryptophan synthesis can be controlled by a process called attenuation in which the levels of tryptophan in the cell control translation by

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#Question id: 12664

#Unit 10. Ecological Principles

Pacific salmon or annual plants illustrate which of the following?